Parameter
structure
Keypad and
display
Parameter x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
412 Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
9 Performance
9.1 Digital speed reference
Table 9-1 Accuracy and resolution
*0.01% of the reference
9.2 Analog reference
Table 9-2 Update rates
* Analog input 1 is subject to a window filter as defined in Pr 7.26.
Table 9-3 Resolution
*16 bit plus sign as a speed reference, resolution = Pr 7.26 x 500 x 10
3
.
9.3 Analog outputs
Table 9-4
*When sourced from Pr 4.02, Pr 4.17 in any mode and Pr 3.02, Pr 5.03
in closed-loop.
9.4 Digital inputs and outputs
Table 9-5 Response times
*software only
Open loop Closed loop
Preset Precision Preset Precision
Accuracy 0.01%* 0.01%* 0.01%* 0.01%*
Resolution 0.1Hz 0.001Hz 0.1rpm 0.001rpm
Open Loop Closed loop
Pr 1.36 /
Pr 1.37
Pr 4.08 Pr 3.19 Other
Pr 1.36 /
Pr 1.37
Pr 4.08 Pr 3.22 Other
All kHz Analog input 1 4ms 4ms 4ms 4ms 250μs* 4ms* 250μs* 4ms*
Analog input 2 / 3 4ms 4ms 4ms 4ms 250μs 250μs 250μs4ms
Open loop Closed loop
Analog input 1 16 bits plus sign* 16 bits plus sign*
Analog input 2 / 3 10 bit plus sign 10 bit plus sign
Resolution (voltage mode) 10 bit plus sign
Resolution (current mode) 10bit
Update rate 4ms
Update rate (high speed update - voltage mode
only)*
250μs
Switching
frequency
Terminals
Open loop Closed loop
Pr 6.35 / Pr 6.36
(Limit switches)
Other
Pr 6.35 / Pr 6.36
(Limit switches)
Other
All 24-26 as input 4ms 4ms 250μs4ms
All 24-26 as output 4ms 4ms 4ms 4ms
All 27-29 4ms 4ms 250μs4ms
All 31 (enable) - 4ms* - 4ms*
All 31 (disable) - <100us - <100μs
All Relay output closing 4ms* 4ms* 4ms* 4ms*
All Relay output opening 4ms* 4ms* 4ms* 4ms*